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Author Abenza, J.F.; Couturier, E.; Dodgson, J.; Dickmann, J.; Chessel, A.; Dumais, J.; Salas, R.E.C. pdf  doi
openurl 
  Title Wall mechanics and exocytosis define the shape of growth domains in fission yeast Type Journal Article
  Year 2015 Publication Nature Communications Abbreviated Journal Nat. Commun.  
  Volume 6 Issue Pages 13 pp  
  Keywords  
  Abstract The amazing structural variety of cells is matched only by their functional diversity, and reflects the complex interplay between biochemical and mechanical regulation. How both regulatory layers generate specifically shaped cellular domains is not fully understood. Here, we report how cell growth domains are shaped in fission yeast. Based on quantitative analysis of cell wall expansion and elasticity, we develop a model for how mechanics and cell wall assembly interact and use it to look for factors underpinning growth domain morphogenesis. Surprisingly, we find that neither the global cell shape regulators Cdc42-Scd1-Scd2 nor the major cell wall synthesis regulators Bgs1-Bgs4-Rgf1 are reliable predictors of growth domain geometry. Instead, their geometry can be defined by cell wall mechanics and the cortical localization pattern of the exocytic factors Sec6-Syb1-Exo70. Forceful re-directioning of exocytic vesicle fusion to broader cortical areas induces proportional shape changes to growth domains, demonstrating that both features are causally linked.  
  Address [Abenza, Juan F.; Dodgson, James; Dickmann, Johanna; Chessel, Anatole; Salas, Rafael E. Carazo] Univ Cambridge, Dept Genet, Cambridge CB2 3EH, England, Email: jfa27@cam.ac.uk;  
  Corporate Author Thesis  
  Publisher Nature Publishing Group Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 2041-1723 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000364922900002 Approved no  
  Call Number UAI @ eduardo.moreno @ Serial 553  
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Author Acena, A.; Anabalon, A.; Astefanesei, D. pdf  doi
openurl 
  Title Exact hairy black brane solutions in 5D anti-de Sitter space and holographic renormalization group flows Type Journal Article
  Year 2013 Publication Physical Review D Abbreviated Journal Phys. Rev. D  
  Volume 87 Issue 12 Pages 6 pp  
  Keywords  
  Abstract We construct a general class of exact regular black hole solutions with toroidal horizon topology in five-dimensional anti-de Sitter gravity with a self-interacting scalar field. With these boundary conditions and due to the nontrivial backreaction of the scalar field, the no-hair theorems can be evaded so that an event horizon can be formed. The scalar field is regular everywhere outside the curvature singularity and it vanishes at the boundary where the potential is finite. We study the properties of these black holes in the context ofAdS/CFT duality and comment on the dual operators, which saturate the unitarity bound. We present exact expressions for the beta function and construct a c-function that characterizes the renormalization-group flow.  
  Address [Anabalon, Andres] Univ Adolfo Ibanez, Fac Artes Liberales, Dept Ciencias, Vina Del Mar, Chile, Email: acena.andres@gmail.com;  
  Corporate Author Thesis  
  Publisher Amer Physical Soc Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1550-7998 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000320951900017 Approved no  
  Call Number UAI @ eduardo.moreno @ Serial 289  
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Author Acena, A.; Anabalon, A.; Astefanesei, D.; Mann, R. pdf  doi
openurl 
  Title Hairy planar black holes in higher dimensions Type Journal Article
  Year 2014 Publication Journal Of High Energy Physics Abbreviated Journal J. High Energy Phys.  
  Volume Issue 1 Pages 21 pp  
  Keywords Classical Theories of Gravity; Black Holes  
  Abstract We construct exact hairy planar black holes in D-dimensional AdS gravity. These solutions are regular except at the singularity and have stress-energy that satisfies the null energy condition. We present a detailed analysis of their thermodynamical properties and show that the first law is satisfied. We also discuss these solutions in the context of AdS/CFT duality and construct the associated c-function.  
  Address [Acena, Andres] Univ Nacl Cuyo, Inst Ciencias Basicas, RA-5500 Mendoza, Argentina, Email: acena.andres@gmail.com;  
  Corporate Author Thesis  
  Publisher Springer Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1029-8479 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000346240600002 Approved no  
  Call Number UAI @ eduardo.moreno @ Serial 431  
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Author Acuna, M.; Eaton, L.; Cifuentes, L. pdf  url
openurl 
  Title Genetic variants of the paraoxonases (PON1 and PON2) in the Chilean population Type Journal Article
  Year 2004 Publication Human Biology Abbreviated Journal Hum. Biol.  
  Volume 76 Issue 2 Pages 299-305  
  Keywords PON1; PON2; paraoxonase; Chilean population; Amerindian admixture; coronary artery disease  
  Abstract We estimated the frequencies of PON1 and PON2 variants (linked genes) in two hospital samples taken from the northern (San Jose Hospital, SJH) and eastern (Clinica Las Condes, CLC) parts of Santiago, Chile, using the polymerase chain reaction followed by restriction endonuclease digestion. The two hospital samples have different degrees of Amerindian admixture (SJH, 34.5%; CLC, 15.9%), which is reflected in the observed frequencies of the PON1*B allele (SJH, 43.1%; CLC, 33.7%) and the PON2*S allele (SJH, 86.3%; CLC, 77.6%); both allele frequencies are significantly different between samples. The frequencies of the combined PON1-PON2 genotypes *A/*B-*C/*C, *A/*B-*S/*S, and *B/*B-*S/*S and of the haplotypes PON*A,C and PON*B,S were significantly different between the SJH and CLC groups. None of the genotype frequencies deviated significantly from those predicted by the Hardy-Weinberg equation. No linkage disequilibrium was found between the PON1 alleles and any of the PON2 alleles in either group (all p > 0.05). In our samples 38.52% (SJH) and 26.25% (CLC) of chromosomes must have the haplotype PON*B,S, presumed to be related to the risk of coronary artery disease. Twenty-four of 193 (12.4%) SJH individuals and 7 of 122 (5.7%) CLC individuals were homozygotes for this haplotype. Finally, our data indicate ethnic-group-dependent genetic differences in the vulnerability to toxic organophosphorus.  
  Address Univ Chile, Genet Program, ICBM, Santiago 7, Chile  
  Corporate Author Thesis  
  Publisher Wayne State Univ Press Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0018-7143 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000223036000009 Approved no  
  Call Number UAI @ eduardo.moreno @ Serial 36  
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Author Acuna, M.; Eaton, L.; Ramirez, N.R.; Cifuentes, L.; Llop, E. pdf  doi
openurl 
  Title Genetic variants of serum butyrylcholinesterase in Chilean Mapuche Indians Type Journal Article
  Year 2003 Publication American Journal Of Physical Anthropology Abbreviated Journal Am. J. Phys. Anthropol.  
  Volume 121 Issue 1 Pages 81-85  
  Keywords plasma butyrylcholinesterase; BCHE locus; genetic variants; Mapuche Indians  
  Abstract We estimated the frequencies of serum butyrylcholinesterase (BChE) alleles in three tribes of Mapuche Indians from southern Chile, using enzymatic methods, and we estimated the frequency of allele BCHE*K in one tribe using primer reduced restriction analysis (PCR-PIRA). The three tribes have different degrees of European admixture, which is reflected in the observed frequencies of the atypical allele BCHE*A: 1.11% in Huilliches, 0.89% in Cuncos, and 0% in Pehuenches. This result is evidence in favor of the hypothesis that BCHE*A is absent in native Amerindians. The frequencies of BCHE*F were higher than in most reported studies (3.89%, 5.78%, and 4.41%, respectively). These results are probably due to an overestimation of the frequency of allele BCHE*F, since none of the 20 BCHE UF individuals (by the enzymatic test) individuals analyzed showed either of the two DNA base substitutions associated with this allele. Although enzymatic methods rarely detect the presence of allele BCHE*K, PCR-PIRA found the allele in an appreciable frequency (5.76%), although lower than that found in other ethnic groups. Since observed frequencies of unusual alleles correspond to estimated percentages of European admixture, it is likely that none of these unusual alleles were present in Mapuche Indians before the arrival of Europeans. (C) 2003 Wiley-Liss, Inc.  
  Address Univ Santiago Chile, Fac Med, Programa Genet, ICBM, Santiago 70061 7, Chile, Email: macuna@machi.med.uchile.cl  
  Corporate Author Thesis  
  Publisher Wiley-Liss Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0002-9483 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000182336300010 Approved no  
  Call Number UAI @ eduardo.moreno @ Serial 37  
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Author Acuna, V.; Ferreira, C.E.; Freire, A.S.; Moreno, E. pdf  doi
openurl 
  Title Solving the maximum edge biclique packing problem on unbalanced bipartite graphs Type Journal Article
  Year 2014 Publication Discrete Applied Mathematics Abbreviated Journal Discret Appl. Math.  
  Volume 164 Issue Pages 2-12  
  Keywords Maximum edge biclique packing; Branch-and-price; Metabolic networks; Product bundling  
  Abstract A biclique is a complete bipartite graph. Given an (L, R)-bipartite graph G = (V, E) and a positive integer k, the maximum edge biclique packing (num') problem consists in finding a set of at most k bicliques, subgraphs of G, such that the bicliques are vertex disjoint with respect to a subset of vertices S, where S E {V, L, R}, and the number of edges inside the bicliques is maximized. The maximum edge biclique (mEs) problem is a special case of the MEBP problem in which k = 1. Several applications of the MEB problem have been studied and, in this paper, we describe applications of the MEBP problem in metabolic networks and product bundling. In these applications the input graphs are very unbalanced (i.e., IRI is considerably greater than ILI), thus we consider carefully this property in our models. We introduce a new formulation for the MEB problem and a branch-and-price scheme, using the classical branch rule by Ryan and Foster, for the MEBP problem. Finally, we present computational experiments with instances that come from the described applications and also with randomly generated instances. (C) 2011 Elsevier B.V. All rights reserved.  
  Address [Acuna, V.] Univ Lyon 1, F-69622 Villeurbanne, France, Email: afreire@ime.usp.br  
  Corporate Author Thesis  
  Publisher Elsevier Science Bv Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0166-218x ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000332427400002 Approved no  
  Call Number UAI @ eduardo.moreno @ Serial 361  
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Author Agostini, C.A.; Nasirov, S.; Silva, C. pdf  doi
openurl 
  Title Solar PV Planning Toward Sustainable Development in Chile: Challenges and Recommendations Type Journal Article
  Year 2016 Publication Journal Of Environment & Development Abbreviated Journal J. Environ. Dev.  
  Volume 25 Issue 1 Pages 25-46  
  Keywords solar energy; sustainability; development; Chile; policy challenges  
  Abstract Over the past decade, the promotion of renewable energy projects in Chile, especially solar energy projects, has become increasingly important, as energy dependence from foreign fossil fuels has increased and concerns regarding climate change continue to grow, posing a significant challenge to the local economy. Even though recent developments toward a more sustainable energy matrix in Chile have significantly increased the investment in the solar energy sector, social and environmental fragilities, combined with the lack of well-functioning institutions and the historical marginalization of indigenous communities who have been affected by several energy projects, result in gradually increasing conflictive situations. Unless proper mechanisms are designed and implemented to rapidly and correctly address these challenges, Chile could miss the opportunities that solar energy projects can provide to the development of its communities and to the economic growth of its regions. This article studies solar photovoltaics planning in Chile, focusing on the recent developments and the main challenges ahead, and proposes policy recommendations for effectively addressing these challenges.  
  Address [Agostini, Claudio A.] Univ Adolfo Ibanez, Econ, Sch Govt, Santiago, Chile, Email: claudio.agostini@uai.cl  
  Corporate Author Thesis  
  Publisher Sage Publications Inc Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1070-4965 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000370428400002 Approved no  
  Call Number UAI @ eduardo.moreno @ Serial 588  
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Author Agostini, C.A.; Silva, C.; Nasirov, S. doi  openurl
  Title Failure of Energy Mega-Projects in Chile: A Critical Review from Sustainability Perspectives Type Journal Article
  Year 2017 Publication Sustainability Abbreviated Journal Sustainability  
  Volume 9 Issue 6 Pages 17 pp  
  Keywords energy mega-projects; Chile; environmental evaluation; sustainability  
  Abstract A number of successive energy crises over the last decade due to the lack of a balanced investment planning in the energy sector in Chile has led to a strong dependence on external sources and also doubled energy prices in the country, thus posing a significant challenge to the local economy. With the purpose of reaching long-term goals while simultaneously addressing short-term urgencies, Chile seeks to build a consistent and integrated energy policy in order to attract investment in the sector. Despite an overall attractive investment climate and encouraging market conditions in the country, the energy sector has been adversely affected, in particular, by the communities' opposition to mega-projects based on their expected environmental and social impacts. The study highlights recent experiences of energy generation mega-projects in terms of addressing aspects of sustainability. Based on these experiences, it discusses underdeveloped role of environmental evaluations and the main regulatory challenges ahead, recommending then public policies to effectively address these challenges.  
  Address [Agostini, Claudio A.] Univ Adolfo Ibanez, Sch Govt, Ave Diagonal Las Torres 2640, Santiago 7941169, Chile, Email: claudio.agostini@uai.cl;  
  Corporate Author Thesis  
  Publisher Mdpi Ag Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 2071-1050 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000404133200195 Approved no  
  Call Number UAI @ eduardo.moreno @ Serial 745  
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Author Aguilera, V.M.; Vargas, C.A.; Lardies, M.A.; Poupin, M.J. pdf  doi
openurl 
  Title Adaptive variability to low-pH river discharges in Acartia tonsa and stress responses to high PCO2 conditions Type Journal Article
  Year 2016 Publication Marine Ecology-An Evolutionary Perspective Abbreviated Journal Mar. Ecol.-Evol. Persp.  
  Volume 37 Issue 1 Pages 215-226  
  Keywords Adaptive variability; copepods; low pH; ocean acidification; river discharges  
  Abstract Environmental transitions leading to spatial physical-chemical gradients are of ecological and evolutionary interest because they are able to induce variations in phenotypic plasticity. Thus, the adaptive variability to low-pH river discharges may drive divergent stress responses [ingestion rates (IR) and expression of stress-related genes such as Heat shock protein 70 (Hsp70) and Ferritin] in the neritic copepod Acartia tonsa facing changes in the marine chemistry associated to ocean acidification (OA). These responses were tested in copepod populations inhabiting two environments with contrasting carbonate system parameters (an estuarine versus coastal area) in the Southern Pacific Ocean, and assessing an insitu and 96-h experimental incubation under conditions of high pressure of CO2 (PCO2 1200ppm). Adaptive variability was a determining factor in driving variability of copepods' responses. Thus, the food-rich but colder and corrosive estuary induced a traits trade-off expressed as depressed IR under insitu conditions. However, this experience allowed these copepods to tolerate further exposure to high PCO2 levels better, as their IRs were on average 43% higher thanthose of the coastal individuals. Indeed, expression of both the Hsp70 and Ferritin genes in coastal copepods was significantly higher after acclimation to high PCO2 conditions. Along with other recent evidence, our findings confirm that adaptation to local fluctuations in seawater pH seems to play a significant role in the response of planktonic populations to OA-associated conditions. Facing the environmental threat represented by the inter-play between multiple drivers of climate change, this biological feature should be examined in detail asa potential tool for risk mitigation policies in coastal management arrangements.  
  Address [Aguilera, Victor M.] Univ Antofagasta, Inst Ciencias Nat Alexander von Humboldt, Ave Univ Antofagasta 02800,POB 170, Antofagasta, Chile, Email: victor.aguilera@uantof.cl  
  Corporate Author Thesis  
  Publisher Wiley-Blackwell Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0173-9565 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000370133500015 Approved no  
  Call Number UAI @ eduardo.moreno @ Serial 590  
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Author Aiyangar, A.K.; Vivanco, J.; Au, A.G.; Anderson, P.A.; Smith, E.L.; Ploeg, H.L. pdf  doi
openurl 
  Title Dependence of Anisotropy of Human Lumbar Vertebral Trabecular Bone on Quantitative Computed Tomography-Based Apparent Density Type Journal Article
  Year 2014 Publication Journal Of Biomechanical Engineering-Transactions Of The Asme Abbreviated Journal J. Biomech. Eng.-Trans. ASME  
  Volume 136 Issue 9 Pages 10 pp  
  Keywords human lumbar vertebrae; trabecular bone; anisotropic ratio; transverse isotropy; elastic modulus-density relationship; strain-density relationship  
  Abstract Most studies investigating human lumbar vertebral trabecular bone (HVTB) mechanical property-density relationships have presented results for the superior-inferior (SI), or “ on-axis” direction. Equivalent, directly measured data from mechanical testing in the transverse (TR) direction are sparse and quantitative computed tomography (QCT) density-dependent variations in the anisotropy ratio of HVTB have not been adequately studied. The current study aimed to investigate the dependence of HVTB mechanical anisotropy ratio on QCT density by quantifying the empirical relationships between QCT-based apparent density of HVTB and its apparent compressive mechanical propertieselastic modulus (E-app), yield strength (sigma(y)), and yield strain (epsilon(y))-in the SI and TR directions for future clinical QCT-based continuum finite element modeling of HVTB. A total of 51 cylindrical cores (33 axial and 18 transverse) were extracted from four L1 human lumbar cadaveric vertebrae. Intact vertebrae were scanned in a clinical resolution computed tomography (CT) scanner prior to specimen extraction to obtain QCT density, rho(CT). Additionally, physically measured apparent density, computed as ash weight over wet, bulk volume, rho(app), showed significant correlation with rho(CT) [rho(CT) = 1.0568 x rho(app), r = 0.86]. Specimens were compression tested at room temperature using the Zetos bone loading and bioreactor system. Apparent elastic modulus (E-app) and yield strength (sigma(y)) were linearly related to the rho(CT) in the axial direction [E-SI = 1493.8 x (rho(CT)), r = 0.77, p < 0.01; sigma(Y,SI) = 6.9 x (rho(CT)) = 0.13, r = 0.76, p < 0.01] while a power-law relation provided the best fit in the transverse direction [E-TR 3349.1 x (rho(CT))(1.94), r = 0.89, p < 0.01; sigma(Y,TR) 18.81 x (rho(CT)) 1.83, r = 0.83, p < 0.01]. No significant correlation was found between epsilon(y) and rho(CT) in either direction. E-app and sigma(y) in the axial direction were larger compared to the transverse direction by a factor of 3.2 and 2.3, respectively, on average. Furthermore, the degree of anisotropy decreased with increasing density. Comparatively, epsilon(y) exhibited only a mild, but statistically significant anisotropy: transverse strains were larger than those in the axial direction by 30%, on average. Ability to map apparent mechanical properties in the transverse direction, in addition to the axial direction, from CT-based densitometric measures allows incorporation of transverse properties in finite element models based on clinical CT data, partially offsetting the inability of continuum models to accurately represent trabecular architectural variations.  
  Address [Aiyangar, Ameet K.] EMPA Swiss Fed Labs Mat Sci & Technol Dubendorf, Lab Mech Syst Engn 304, CH-8600 Dubendorf, Switzerland, Email: ameetaiyangar@gmail.com  
  Corporate Author Thesis  
  Publisher Asme Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0148-0731 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000340617700003 Approved no  
  Call Number UAI @ eduardo.moreno @ Serial 401  
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Author Akhmediev, N.; Kibler, B.; Baronio, F.; Belic, M.; Zhong, W.P.; Zhang, Y.Q.; Chang, W.; Soto-Crespo, J.M.; Vouzas, P.; Grelu, P.; Lecaplain, C.; Hammani, K.; Rica, S.; Picozzi, A.; Tlidi, M.; Panajotov, K.; Mussot, A.; Bendahmane, A.; Szriftgiser, P.; Genty, G.; Dudley, J.; Kudlinski, A.; Demircan, A.; Morgner, U.; Amiraranashvili, S.; Bree, C.; Steinmeyer, G.; Masoller, C.; Broderick, N.G.R.; Runge, A.F.J.; Erkintalo, M.; Residori, S.; Bortolozzo, U.; Arecchi, F.T.; Wabnitz, S.; Tiofack, C.G.; Coulibaly, S.; Taki, M. pdf  openurl
  Title Roadmap on optical rogue waves and extreme events Type Journal Article
  Year 2016 Publication Journal Of Optics Abbreviated Journal J. Opt.  
  Volume 18 Issue 6 Pages 37 pp  
  Keywords rogue waves; extreme events; nonlinear optics  
  Abstract The pioneering paper 'Optical rogue waves' by Solli et al (2007 Nature 450 1054) started the new subfield in optics. This work launched a great deal of activity on this novel subject. As a result, the initial concept has expanded and has been enriched by new ideas. Various approaches have been suggested since then. A fresh look at the older results and new discoveries has been undertaken, stimulated by the concept of 'optical rogue waves'. Presently, there may not by a unique view on how this new scientific term should be used and developed. There is nothing surprising when the opinion of the experts diverge in any new field of research. After all, rogue waves may appear for a multiplicity of reasons and not necessarily only in optical fibers and not only in the process of supercontinuum generation. We know by now that rogue waves may be generated by lasers, appear in wide aperture cavities, in plasmas and in a variety of other optical systems. Theorists, in turn, have suggested many other situations when rogue waves may be observed. The strict definition of a rogue wave is still an open question. For example, it has been suggested that it is defined as 'an optical pulse whose amplitude or intensity is much higher than that of the surrounding pulses'. This definition (as suggested by a peer reviewer) is clear at the intuitive level and can be easily extended to the case of spatial beams although additional clarifications are still needed. An extended definition has been presented earlier by N Akhmediev and E Pelinovsky (2010 Eur. Phys. J. Spec. Top. 185 1-4). Discussions along these lines are always useful and all new approaches stimulate research and encourage discoveries of new phenomena. Despite the potentially existing disagreements, the scientific terms 'optical rogue waves' and 'extreme events' do exist. Therefore coordination of our efforts in either unifying the concept or in introducing alternative definitions must be continued. From this point of view, a number of the scientists who work in this area of research have come together to present their research in a single review article that will greatly benefit all interested parties of this research direction. Whether the authors of this 'roadmap' have similar views or different from the original concept, the potential reader of the review will enrich their knowledge by encountering most of the existing views on the subject. Previously, a special issue on optical rogue waves (2013 J. Opt. 15 060201) was successful in achieving this goal but over two years have passed and more material has been published in this quickly emerging subject. Thus, it is time for a roadmap that may stimulate and encourage further research.  
  Address [Akhmediev, Nail; Chang, Wonkeun; Vouzas, Peter] Australian Natl Univ, Opt Sci Grp, Res Sch Phys & Engn, Acton, ACT 2601, Australia, Email: Nail.Akhmediev@anu.edu.au  
  Corporate Author Thesis  
  Publisher Iop Publishing Ltd Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 2040-8978 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000378065100002 Approved no  
  Call Number UAI @ eduardo.moreno @ Serial 635  
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Author Allende, C.; Sohn, E.; Little, C. pdf  doi
openurl 
  Title Treelink: data integration, clustering and visualization of phylogenetic trees Type Journal Article
  Year 2015 Publication Bmc Bioinformatics Abbreviated Journal BMC Bioinformatics  
  Volume 16 Issue Pages 6 pp  
  Keywords Phylogenetic tree; Data integration; Clustering; Visualization  
  Abstract Background: Phylogenetic trees are central to a wide range of biological studies. In many of these studies, tree nodes need to be associated with a variety of attributes. For example, in studies concerned with viral relationships, tree nodes are associated with epidemiological information, such as location, age and subtype. Gene trees used in comparative genomics are usually linked with taxonomic information, such as functional annotations and events. A wide variety of tree visualization and annotation tools have been developed in the past, however none of them are intended for an integrative and comparative analysis. Results: Treelink is a platform-independent software for linking datasets and sequence files to phylogenetic trees. The application allows an automated integration of datasets to trees for operations such as classifying a tree based on a field or showing the distribution of selected data attributes in branches and leafs. Genomic and proteonomic sequences can also be linked to the tree and extracted from internal and external nodes. A novel clustering algorithm to simplify trees and display the most divergent clades was also developed, where validation can be achieved using the data integration and classification function. Integrated geographical information allows ancestral character reconstruction for phylogeographic plotting based on parsimony and likelihood algorithms. Conclusion: Our software can successfully integrate phylogenetic trees with different data sources, and perform operations to differentiate and visualize those differences within a tree. File support includes the most popular formats such as newick and csv. Exporting visualizations as images, cluster outputs and genomic sequences is supported. Treelink is available as a web and desktop application at http://www. treelinkapp. com.  
  Address [Allende, Christian; Sohn, Erik; Little, Cedric] Univ Adolfo Ibanez, Fac Sci & Engn, Santiago 7941169, Chile, Email: christian.allende.cid@gmail.com  
  Corporate Author Thesis  
  Publisher Biomed Central Ltd Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1471-2105 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000367229200001 Approved no  
  Call Number UAI @ eduardo.moreno @ Serial 559  
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Author Allende, H.; Bravo, D.; Canessa, E. pdf  doi
openurl 
  Title Robust design in multivariate systems using genetic algorithms Type Journal Article
  Year 2010 Publication Quality & Quantity Abbreviated Journal Qual. Quant.  
  Volume 44 Issue 2 Pages 315-332  
  Keywords Robust design; Taguchi methods; Genetic algorithms; Desirability functions  
  Abstract This paper presents a methodology based oil genetic algorithms, which finds feasible and reasonably adequate Solutions to problems of robust design in multivariate systems. We use a genetic algorithm to determine the appropriate control factor levels for simultaneously optimizing all of the responses of the system, considering the noise factors which affect it. The algorithm is guided by a desirability function which works with only one fitness function although the system May have many responses. We validated the methodology using data obtained from a real system and also from a process simulator, considering univariate and multivariate systems. In all cases, the methodology delivered feasible solutions, which accomplished the goals of robust design: obtain responses very close to the target values of each of them, and with minimum variability. Regarding the adjustment of the mean of each response to the target value, the algorithm performed very well. However, only in some of the multivariate cases, the algorithm was able to significantly reduce the variability of the responses.  
  Address [Allende, Hector; Bravo, Daniela; Canessa, Enrique] Univ Adolfo Ibanez, Fac Ciencia & Tecnol, Balmaceda 1620, Vina Del Mar, Chile, Email: hallende@uai.cl  
  Corporate Author Thesis  
  Publisher Springer Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0033-5177 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000275327300008 Approved no  
  Call Number UAI @ eduardo.moreno @ Serial 82  
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Author Allende, H.; Elias, C.; Torres, S. pdf  url
openurl 
  Title Estimation of the option prime: Microsimulation of backward stochastic differential equations Type Journal Article
  Year 2004 Publication International Statistical Review Abbreviated Journal Int. Stat. Rev.  
  Volume 72 Issue 1 Pages 107-121  
  Keywords Black-Scholes model; stochastic differential equations; options prime; hedging strategy  
  Abstract A mathematical statistical model is needed to obtain an option prime and create a hedging strategy. With formulas derived from stochastic differential equations, the primes for US Dollar/Chilean Pesos currency options using a prime calculator are obtained. Furthermore, a backward simulation of the option prime trajectory is used with a numerical method created for backward stochastic differential equations. The use of statistics in finance is highly important in order to develop complex products.  
  Address Univ Tecn Federico Santa Maria, Dept Informat, Valparaiso, Chile  
  Corporate Author Thesis  
  Publisher Int Statistical Inst Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0306-7734 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000222159200009 Approved no  
  Call Number UAI @ eduardo.moreno @ Serial 45  
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Author Allende, H.; Salas, R.; Moraga, C. pdf  doi
openurl 
  Title A robust and effective learning algorithm for feedforward neural networks based on the influence function Type Journal Article
  Year 2003 Publication Lecture Notes in Computer Sciences Abbreviated Journal Lect. Notes Comput. Sc.  
  Volume 2652 Issue Pages 28-36  
  Keywords feedforward artificial neural networks; robust learning; effective parameter estimate  
  Abstract The learning process of the Feedforward Artificial Neural Networks relies on the data, though a robustness analysis of the parameter estimates of the model must be done due to the presence of outlying observations in the data. In this paper we seek the robust properties in the parameter estimates in the sense that the influence of aberrant observations or outliers in the estimate is bounded so the neural network is able to model the bulk of data. We also seek a trade off between robustness and efficiency under a Gaussian model. An adaptive learning procedure that seeks both aspects is developed. Finally we show some simulations results applied to the RESEX time series.  
  Address Univ Tecn Federico Santa Maria, Dept Informat, Valparaiso, Chile, Email: hallende@inf.utfsm.cl  
  Corporate Author Thesis  
  Publisher Springer-Verlag Berlin Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0302-9743 ISBN Medium  
  Area Expedition Conference Pattern Recognition And Image Analysis  
  Notes WOS:000184832300004 Approved no  
  Call Number UAI @ eduardo.moreno @ Serial 35  
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Author Allende-Cid, H.; Canessa, E.; Quezada, A.; Allende, H. pdf  url
openurl 
  Title An Improved Fuzzy Rule-Based Automated Trading Agent Type Journal Article
  Year 2011 Publication Studies In Informatics And Control Abbreviated Journal Stud. Inform. Control  
  Volume 20 Issue 2 Pages 135-142  
  Keywords Automated Trading Agents; Fuzzy Rule-based Agents  
  Abstract In this paper an improved Fuzzy Rule-Based Trading Agent is presented. The proposal consists in adding machine-learning-based methods to improve the overall performance of an automated agent that trades in futures markets. The modified Fuzzy Rule-Based Trading Agent has to decide whether to buy or sell goods, based on the spot and futures time series, gaining a profit from the price speculation. The proposal consists first in changing the membership functions of the fuzzy inference model (Gaussian and Sigmoidal, instead of triangular and trapezoidal). Then using the NFAR (Neuro-Fuzzy Autoregressive) model the relevant lags of the time series are detected, and finally a fuzzy inference system (Self-Organizing Neuro-Fuzzy Inference System) is implemented to aid the decision making process of the agent. Experimental results demonstrate that with the addition of these techniques, the improved agent considerably outperforms the original one.  
  Address [Allende-Cid, H; Allende, H] Univ Tecn Federico Santa Maria, Dept Informat, Valparaiso 2390123, Chile, Email: vector@inf.utfsm.cl  
  Corporate Author Thesis  
  Publisher Natl Inst R&D Informatics-Ici Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1220-1766 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000292015600006 Approved no  
  Call Number UAI @ eduardo.moreno @ Serial 157  
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Author Alvarez-Gerding, X.; Cortes-Bullemore, R.; Medina, C.; Romero-Romero, J.L.; Inostroza-Blancheteau, C.; Aquea, F.; Arce-Johnson, P. pdf  doi
openurl 
  Title Improved Salinity Tolerance in Carrizo Citrange Rootstock through Overexpression of Glyoxalase System Genes Type Journal Article
  Year 2015 Publication Biomed Research International Abbreviated Journal Biomed Res. Int.  
  Volume 827951 Issue Pages 7 pp  
  Keywords  
  Abstract Citrus plants are widely cultivated around the world and, however, are one of the most salt stress sensitive crops. To improve salinity tolerance, transgenic Carrizo citrange rootstocks that overexpress glyoxalase I and glyoxalase II genes were obtained and their salt stress tolerance was evaluated. Molecular analysis showed high expression for both glyoxalase genes (BjGlyI and PgGlyII) in 5H03 and 5H04 lines. Under control conditions, transgenic and wild type plants presented normal morphology. In salinity treatments, the transgenic plants showed less yellowing, marginal burn in lower leaves and showed less than 40% of leaf damage compared with wild type plants. The transgenic plants showed a significant increase in the dry weight of shoot but there are no differences in the root and complete plant dry weight. In addition, a higher accumulation of chlorine is observed in the roots in transgenic line 5H03 but in shoot it was lower. Also, the wild type plant accumulated around 20% more chlorine in the shoot compared to roots. These results suggest that heterologous expression of glyoxalase system genes could enhance salt stress tolerance in Carrizo citrange rootstock and could be a good biotechnological approach to improve the abiotic stress tolerance in woody plant species.  
  Address [Alvarez-Gerding, Ximena; Cortes-Bullemore, Rowena; Medina, Consuelo; Romero-Romero, Jesus L.; Aquea, Felipe; Arce-Johnson, Patricio] Pontificia Univ Catolica Chile, Fac Ciencias Biol, Dept Genet Mol & Microbiol, Santiago 8331150, Chile, Email: parce@bio.puc.cl  
  Corporate Author Thesis  
  Publisher Hindawi Publishing Corporation Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 2314-6133 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000358308800001 Approved no  
  Call Number UAI @ eduardo.moreno @ Serial 513  
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Author Alvarez-Miranda, E.; Pereira, J. pdf  doi
openurl 
  Title Designing and constructing networks under uncertainty in the construction stage: Definition and exact algorithmic approach Type Journal Article
  Year 2017 Publication Computers & Operations Research Abbreviated Journal Comput. Oper. Res.  
  Volume 81 Issue Pages 178-191  
  Keywords Network design; Network construction; Two-stage robust optimization; Exact algorithms  
  Abstract The present work proposes a novel Network Optimization problem whose core is to combine both network design and network construction scheduling under uncertainty into a single two-stage robust optimization model. The first-stage decisions correspond to those of a classical network design problem, while the second-stage decisions correspond to those of a network construction scheduling problem (NCS) under uncertainty. The resulting problem, which we will refer to as the Two-Stage Robust Network Design and Construction Problem (2SRNDC), aims at providing a modeling framework in which the design decision not only depends on the design costs (e.g., distances) but also on the corresponding construction plan (e.g., time to provide service to costumers). We provide motivations, mixed integer programming formulations, and an exact algorithm for the 2SRNDC. Experimental results on a large set of instances show the effectiveness of the model in providing robust solutions, and the capability of the proposed algorithm to provide good solutions in reasonable running times. (C) 2017 Elsevier Ltd. All rights reserved.  
  Address [Alvarez-Miranda, Eduardo] Univ Talca, Dept Ind Engn, Curico, Chile, Email: ealvarez@utalca.cl  
  Corporate Author Thesis  
  Publisher Pergamon-Elsevier Science Ltd Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0305-0548 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000394079400015 Approved no  
  Call Number UAI @ eduardo.moreno @ Serial 706  
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Author Anabalon, A. pdf  doi
openurl 
  Title Exact black holes and universality in the backreaction of non-linear sigma models with a potential in (A)dS(4) Type Journal Article
  Year 2012 Publication Journal Of High Energy Physics Abbreviated Journal J. High Energy Phys.  
  Volume Issue 6 Pages 18 pp  
  Keywords Integrable Equations in Physics; Black Holes  
  Abstract The aim of this paper is to construct accelerated, stationary and axisymmetric exact solutions of the Einstein theory with self interacting scalar fields in (A)dS4. To warm up, the backreaction of the (non)-minimally coupled scalar field is solved, the scalar field equations are integrated and all the potentials compatible with the metric ansatz and Einstein gravity are found. With these results at hand the non-linear sigma model is tackled. The scalar field Lagrangian is generic; neither the coupling to the curvature, neither the metric in the scalar manifold nor the potential, are fixed ab initio. The unique assumption in the analysis is the metric ansatz: it has the form of the most general Petrov type D vacuum solution of general relativity; it is a a cohomogeneity two Weyl rescaling of the Carter metric and therefore it has the typical Plebanski-Demianski form with two arbitrary functions of one variable and one arbitrary function of two variables. It is shown, by an straightforward manipulation of the field equations, that the metric is completely integrable without necessity of specifiying anything in the scalar Lagrangian. This results is that the backreaction of the scalar fields, within this class of metrics, is universal. The metric functions generically show an explicit dependence on a dynamical exponent that allows to smoothly connect this new family of solutions with the actual Plebanski-Demianski spacetime. The remaining field equations imply that the scalar fields follow geodesics in the scalar manifold with an affine parameter given by a non-linear function of the spacetime coordinates and define the on-shell form of the potential plus a functional equation that it has to satisfy. To further find the exact form of the potential the simplest case associated to a flat scalar manifold is taken. The most general potential compatible with the Einstein theory and the metric ansatz is constructed in this case and it is shown that it has less symmetry than the maximal compact subgroup of the coset construction. Finally, the most general family of (A) dS4 static hairy black holes is explicitly constructed and its properties are outlined.  
  Address Univ Adolfo Ibanez, Fac Ingn & Ciencias, Dept Ceneias, Fac Arts Liberales, Vina Del Mar, Chile, Email: andres.anabalon@uai.cl  
  Corporate Author Thesis  
  Publisher Springer Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1029-8479 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000306418300036 Approved no  
  Call Number UAI @ eduardo.moreno @ Serial 242  
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Author Anabalon, A.; Astefanesei, D. pdf  doi
openurl 
  Title On attractor mechanism of AdS(4) black holes Type Journal Article
  Year 2013 Publication Physics Letters B Abbreviated Journal Phys. Lett. B  
  Volume 727 Issue 4-5 Pages 568-572  
  Keywords  
  Abstract We construct a general family of exact non-extremal 4-dimensional black holes in AdS gravity with U(1) gauge fields non-minimally coupled to a dilaton and a non-trivial dilaton potential. These black holes can have spherical, toroidal, and hyperbolic horizon topologies. We use the entropy function formalism to obtain the near horizon data in the extremal limit. Due to the non-trivial self-interaction of the scalar field, the zero temperature black holes can have a finite horizon area even if only the electric field is turned on. (C) 2013 Elsevier B.V. All rights reserved.  
  Address [Anabalon, Andres] Univ Adolfo Ibanez, Fac Artes Liberales, Dept Ciencias, Vina Del Mar, Chile  
  Corporate Author Thesis  
  Publisher Elsevier Science Bv Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0370-2693 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000328722500036 Approved no  
  Call Number UAI @ eduardo.moreno @ Serial 336  
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